## The Mathematical Symbol "Equals Sign (=)"

The = Symbol in Mathematics: Equals Sign

Amidst the plethora of mathematical symbols, the = symbol, commonly known as the "Equals Sign", stands as one of the most fundamental and universally recognized. Its introduction revolutionized mathematical notation, providing a clear way to show equality.

## Usage

The = symbol is employed to indicate that two quantities or expressions are identical, meaning they represent the same value. Its use permeates almost every facet of mathematics, from basic arithmetic to advanced equations in higher mathematics.

## Examples

**Example 1:**In basic arithmetic:

\( 2 + 3 = 5 \)

This demonstrates that the sum of 2 and 3 is equal to 5.**Example 2:**In algebraic equations:

\( x^2 + 2x + 1 = (x + 1)^2 \)

Here, the polynomial on the left side of the equals sign is identical in value to the squared binomial on the right side.

In essence, the = symbol serves as a foundational building block in mathematical notation, enabling mathematicians to communicate equivalencies with clarity and precision. Its pervasive use across mathematical disciplines attests to its critical importance and universal acceptance.

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## Codes for the = Symbol

The Symbol | = | |

Alt Code | Alt 61 | |

HTML Code | = | |

HTML Entity | = | |

CSS Code | \003D | |

Hex Code | = | |

Unicode | U+003D |

## How To Insert the = Symbol

(Method 1) Copy and paste the symbol.

The easiest way to get the = symbol is to copy and paste it into your document.Bear in mind that this is a UTF-8 encoded character. It must be encoded as UTF-8 at all stages (copying, replacing, editing, pasting), otherwise it will render as random characters or the dreaded �.

(Method 2) Use the "Alt Code."

If you have a keyboard with a numeric pad, you can use this method. Simply hold down the Alt key and type 61. When you lift the Alt key, the symbol appears. ("Num Lock" must be on.)(Method 3) Use the HTML Decimal Code (for webpages).

HTML Text | Output |
---|---|

<b>My symbol: =</b> | My symbol: = |

(Method 4) Use the HTML Entity Code (for webpages).

HTML Text | Output |
---|---|

<b>My symbol: =</b> | My symbol: = |

(Method 5) Use the CSS Code (for webpages).

CSS and HTML Text | Output |
---|---|

<style> span:after { content: "\003D";} </style> <span>My symbol:</span> | My symbol: = |

(Method 6) Use the HTML Hex Code (for webpages and HTML canvas).

HTML Text | Output |
---|---|

<b>My symbol: =</b> | My symbol: = |

**0x003D**to place the = symbol on your canvas. For example:

JavaScript Text |
---|

const x = "0x"+"E9" ctx.fillText(String.fromCodePoint(x), 5, 5); |

Output |

= |

(Method 7) Use the Unicode (for various, e.g. Microsoft Office, JavaScript, Perl).

The Unicode for = is**U+003D**. The important part is the hexadecimal number after the

**U+**, which is used in various formats. For example, in Microsoft Office applications (e.g. Word, PowerPoint), do the following:

Type | Output |
---|---|

003D [Hold down Alt] [Press x] | = (The 003D turns into =. Note that you can omit any leading zeros.) |

JavaScript Text | Output |
---|---|

let str = "\u003D" document.write("My symbol: " + str) | My symbol: = |

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## More about Mathematical Symbols

Mathematics is a universal language that is used to describe and understand the intricacies of the universe. At the heart of this language are symbols, concise representations that convey specific meanings and ideas.Just as letters come together to form words in spoken languages, mathematical symbols combine to form expressions and equations, encapsulating intricate ideas in a compact form. The history of these symbols is as varied as their meanings; some have been in use for centuries while others have been introduced more recently to describe new discoveries and concepts. Whether you are a student, educator, researcher, or simply curious, this list of mathematical symbols will serve as a guide, shedding light on their meanings, origins, and applications.

From the simple plus and minus signs to the more esoteric and complex, each symbol has its unique story and significance.